This reviewer struggled to keep his eyes open. This becomes a problem after a few deliveries, as the scenery isn't very interesting, and driving slowly back and forth along the same roads gets pretty boring. Trucks are of course quite slow, and it's never really difficult as long as you're concentrating. However, in the snow based missions here, it's not that difficult. The delivery challenges gradually get harder, with more traffic to avoid and trickier truck to drive.